{"instruction": "You are an expert in event extraction. Please extract events from the input that conform to the schema definition. Return an empty list for events that do not exist, and return NAN for arguments that do not exist. If an argument has multiple values, please return a list. Respond in the format of a JSON string.", "schema": [{"event_type": "potential therapeutic event", "trigger": true, "arguments": ["Treatment.Dosage", "Treatment.Disorder", "Treatment.Drug", "Treatment.Time_elapsed", "Subject.Gender", "Subject.Age", "Combination.Drug", "Subject", "Subject.Race", "Effect", "Treatment.Freq", "Treatment.Route"]}, {"event_type": "adverse event", "trigger": true, "arguments": ["Treatment.Route", "Treatment.Time_elapsed", "Subject.Age", "Treatment.Duration", "Treatment.Freq", "Effect", "Subject", "Treatment.Drug", "Subject.Disorder", "Treatment.Dosage", "Subject.Gender", "Subject.Population", "Combination.Drug", "Subject.Race", "Treatment.Disorder", "Treatment"]}], "input": "We report the first case of polymorphic ventricular tachycardia with normal QT interval associated with the oral use of levofloxacin in the absence of other etiologies known to cause these arrhythmias."}
{"potential therapeutic event": [], "adverse event": [{"trigger": "associated ", "arguments": {"Treatment.Route": "oral", "Treatment.Time_elapsed": "NAN", "Subject.Age": "NAN", "Treatment.Duration": "NAN", "Treatment.Freq": "NAN", "Effect": ["polymorphic ventricular tachycardia with normal QT interval", "arrhythmias"], "Subject": "the first case", "Treatment.Drug": "levofloxacin", "Subject.Disorder": "NAN", "Treatment.Dosage": "NAN", "Subject.Gender": "NAN", "Subject.Population": "NAN", "Combination.Drug": "NAN", "Subject.Race": "NAN", "Treatment.Disorder": "NAN", "Treatment": "oral use of levofloxacin"}}]}